intelligent-investor-graham

intelligent-investor-graham is a skill for Claude Code, Codex from simbajigege/book2skills. It costs 37 tokens per session (2,372 once invoked), scanned A, original, MIT.

An investing framework based on Benjamin Graham’s The Intelligent Investor. It helps examine the difference between investing and speculation, stock quality, price versus value, portfolio policy, funds, and initial public offerings.

In plain words
What is it for?
Use it to screen defensive stocks, review an investment’s price and value, assess funds and IPOs, decide how to respond to market swings, and find lower-priced opportunities.
Why use it?
It gives investors a disciplined way to judge market prices instead of reacting to short-term fluctuations. Its central idea is a margin of safety: leave room for mistakes in an investment decision.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to screen defensive stocks, review an investment’s price and value, assess funds and IPOs, decide how to respond to market swings, and find lower-priced opportunities.

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Install with agentmods
npx agentmods add skills/simbajigege/book2skills/intelligent-investor-graham
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add simbajigege/book2skills --skill intelligent-investor-graham
Clone the repo
git clone --depth 1 https://github.com/simbajigege/book2skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for intelligent-investor-graham

README.md
[![agentmods](https://agentmods.dev/badge/skills/simbajigege/book2skills/intelligent-investor-graham/github.svg)](https://agentmods.dev/skills/simbajigege/book2skills/intelligent-investor-graham)
Your own site
<a href="https://agentmods.dev/skills/simbajigege/book2skills/intelligent-investor-graham"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/intelligent-investor-graham/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/simbajigege/book2skills/intelligent-investor-graham"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/intelligent-investor-graham.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,372 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00037 $0.02372
Opus 5.5 $0.00015 $0.00949
Sonnet 5.5 $0.00007 $0.00474
Haiku 4.5 $0.00004 $0.00237

Measured 1mo ago against content hash 78e0d6b00645, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

intelligent-investor-graham scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/intelligent-investor-graham/SKILL.md · 173 lines

How it starts

The opening of the file, as written. The whole thing — 173 lines — stays where its author put it; the contents beside it link to each section on GitHub.

The Intelligent Investor — Skill (Benjamin Graham)

Knowledge source: The Intelligent Investor by Benjamin Graham, revised edition with commentary by Jason Zweig. Architecture: Orchestrator + 7 subskills. This file routes the user query; subskills execute the actual Graham workflows.

intelligent-investor-graham/
├── SKILL.md
├── quotes/
│   ├── market-philosophy-quotes.md
│   └── value-investing-quotes.md
└── subskills/
    ├── m1_investment_vs_speculation/
    │   ├── module.md
    │   └── references/case_library.md
    ├── m2_defensive_stock_screen/
    │   ├── module.md
    │   └── references/case_library.md
    ├── m3_margin_of_safety_pricing/
    │   ├── module.md
    │   └── references/case_library.md
    ├── m4_market_fluctuation_response/
    │   ├── module.md
    │   └── references/case_library.md
    ├── m5_portfolio_policy/
    │   ├── module.md
    │   └── references/case_library.md
    ├── m6_fund_adviser_ipo_review/
    │   ├── module.md
    │   └── references/case_library.md
    └── m7_enterprising_bargain_hunt/
        ├── module.md
        └── references/case_library.md

Skill Purpose

Use this skill to apply Graham's value-investing discipline to practical investor decisions: distinguishing investment from speculation, screening defensive stocks, estimating margin of safety, responding to market swings, setting portfolio policy, evaluating funds or advisers, and searching for enterprising-investor bargains.

This is not a market-forecasting, momentum-trading, tax-planning, or personalized financial-advice skill. Its job is to force businesslike analysis, conservative arithmetic, and temperament discipline before any action is labeled an investment.

When to Use This Skill

Invoke this skill when the user asks questions such as:

  • "Is this stock worth buying under Graham's rules?"
  • "Is this an investment or speculation?"
  • "Does this company pass the defensive investor checklist?"
  • "What price gives enough margin of safety?"
  • "The stock or market dropped. Should I sell?"
  • "How should I split my portfolio between stocks and bonds?"
  • "Should I buy this fund, adviser product, IPO, SPAC, or hot growth story?"
  • "How would Graham look for bargain stocks?"

Read the full file on GitHub · 173 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 173 lines · 37 tokens per session scan A 78e0d6b00645

Subscribe to this mod's changes

intelligent-investor-graham is a skill published in the GitHub repository simbajigege/book2skills (194 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 2,372 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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